<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" @click="preview(i)"></image>
			</swiper-item>
		</swiper>
		
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">
				￥{{ goods_info.goods_price }}
			</view>
			<!-- 商品信息主体区域 -->
			<view class="goods-info-body">
				<!-- 商品名称 -->
				<view class="goods-name">
					{{ goods_info.goods_name }}
				</view>
				<!-- 收藏按钮 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="yf">快递：免运费</view>
		</view>
		
		<!-- 商品图文详情信息 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		<!-- 商品导航区域 -->
		<view class="goods-nav">
			<!-- fill 控制右侧按钮样式 -->
			<!-- options 左侧按钮配置项-->
			<!-- buttonGroup 左侧按钮点击处理函数-->
			<!-- buttonClick 右侧按钮点击事件处理函数-->
			<uni-goods-nav 
				:options="options" 
				:fill="true" 
				:buttonGroup="buttonGroup" 
				@click="onClick" 
				@buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				// 商品详情
				goods_info: {},
				// 商品导航
				options: [{
					icon: 'shop',
					text: '店铺',
					infoBackgroundColor: '#007aff',
					infoColor: "#f5f5f5"
				}, {
					icon: 'cart',
					text: '购物车',
					info: 2
				}],
				buttonGroup: [{
						text: '加入购物车',
						backgroundColor: 'linear-gradient(90deg, #FFCD1E, #FF8A18)',
						color: '#fff'
					},
					{
						text: '立即购买',
						backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
						color: '#fff'
					}
				],
				customButtonGroup: [{
						text: '加入购物车',
						backgroundColor: 'linear-gradient(90deg, #1E83FF, #0053B8)',
						color: '#fff'
					},
					{
						text: '立即购买',
						backgroundColor: 'linear-gradient(90deg, #60F3FF, #088FEB)',
						color: '#fff'
					}
				],
				customButtonGroup1: [{
					text: '立即购买',
					backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
					color: '#fff'
				}]
			}
		},
		onLoad(options) {
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods: {
			async getGoodsDetail(goods_id) {
				const {data: res} = await uni.$http.get('/api/public/v1/goods/detail', { goods_id })
				if(res.meta.status !== 200) return uni.$showMsg()
				// console.log(res.message);
				// 正则表达式替换img行内属性，解决图片存在间距问题
				// 替换webp图片格式为jpg，解决iOSwebp不显示问题
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display: block;" ').replace(/webp/g, 'jpg')
				this.goods_info = res.message
			},
			
			// 轮播图预览
			preview(i) {
				// 调用uni.previewImage方法预览图片
				uni.previewImage({
					// 默认显示图片所有
					current: i,
					// 所有图片url地址的数组
					urls: this.goods_info.pics.map(x => x.pics_big)
				})
			},
			// 商品导航按钮点击事件
			onClick(e) {
				// 如果点击购物车按钮跳转到cart页面
				if(e.content.text === '购物车') {
					uni.switchTab({
						url: '/pages/cart/cart'
					})
				}
			}
		}
	}
</script>

<style lang="scss">
swiper {
  height: 750rpx;
  image {
    width: 100%;
    height: 100%;
  }
}
.goods-info-box {
	padding: 10px;
	padding-right: 0;
	.price {
		color: #c00000;
		font-size: 18px;
		margin: 10px 0;
	}
	.goods-info-body {
		display: flex;
		justify-content: space-between;
		.goods-name {
			font-size: 14px;
			color: #666;
			margin-right: 10px;
		}
		.favi {
			font-size: 12px;
			width: 120px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf {
		color: gray;
		font-size: 12px;
		margin: 10px 0;
	}
}
.goods-nav {
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}
.goods-detail-container {
	padding-bottom: 50px;
}
</style>
